Carlsberg is giving away 30 pairs of festival tickets in a text-to-win promotion for Tuborg in the beer's biggest on-pack push to date. Tuborg drinkers can win the tickets by texting 'festival' to a number displayed on four, eight and 20-packs of the beer from next week. Each text will be entered into the competition to win tickets to rock festivals across the country, including Glastonbury, Leeds, and Reading.